Could it it detect different kinds of ear pressures, you could control it that way using your air passages. Two big sniffs to skip a song.

Copyrighting this right here btw.

I'll take 10% of all future sales please.

If you're taking the piss I don't know where I've tripped up from your comment. Is there something infeasible about triple taps? If you jailbreak you can do it..

No I'm serious, wasn't reflecting on your comment. Im not a doctor so not sure if air pressure in the ear canal could be detected and how much a human can control it. But it would be easier than voice or touch from the users point of view.

Apologies. Wound too tight today.

Eh I think that interface stinks. It's just physically very uncomfortable to tap on the headphones in your ear because of the loud noise and the headphone pressing deeper into your ear. I have a knockoff bluetooth "Pods" and I absolutely hate the triple tap.

A trick I found out is you can tap on the back of your ear and it also triggers the tap action without banging the thing in to your ear.